US9764372B2 - Method for the punching in and attachment of a fastener element and corresponding die button - Google Patents
Method for the punching in and attachment of a fastener element and corresponding die button Download PDFInfo
- Publication number
- US9764372B2 US9764372B2 US14/470,372 US201414470372A US9764372B2 US 9764372 B2 US9764372 B2 US 9764372B2 US 201414470372 A US201414470372 A US 201414470372A US 9764372 B2 US9764372 B2 US 9764372B2
- Authority
- US
- United States
- Prior art keywords
- fastener element
- die
- workpiece
- accordance
- pressing force
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active, expires
Links
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000004080 punching Methods 0.000 title claims abstract description 31
- 238000003825 pressing Methods 0.000 claims abstract description 34
- 239000002184 metal Substances 0.000 claims abstract description 31
- 238000005520 cutting process Methods 0.000 claims description 14
- 238000007493 shaping process Methods 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000011324 bead Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
- B21D39/035—Joining superposed plates by slitting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/02—Riveting procedures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
- B23P19/062—Pierce nut setting machines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
- F16B37/062—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49833—Punching, piercing or reaming part by surface of second part
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5343—Means to drive self-piercing work part
Definitions
- the present invention relates to a method for the punching in and attachment of a fastener element to a planar workpiece, in particular to a sheet metal part.
- swarf is generated by the punching process and disadvantageously affects the reliability of the attachment of the element.
- the swarf is often jammed between a rivet section, which is beaded over during or after the actual punching in of the fastener element for its attachment to the workpiece, and the workpiece.
- the swarf also remains lying in a die button which is used for the punching in and the beading over of the rivet section.
- the swarf is then lifted with the punched in fastener element secured to the workpiece out of the die button and subsequently migrates as a foreign body through the tooling and can lead to ugly impressions in the finished component assembly in the further course of the manufacture of a component.
- a movably arranged die plunger of the die button is pressed with a predetermined pressing force against the workpiece during the punching in of the fastener element into the workpiece.
- the pressing force is adapted during this in such a way that the die plunger first moves when a slug has been cut out of the workpiece by a piercing section of the fastener element.
- the piercing and rivet section of the fastener element first creates a depression in the workpiece which projects into the die button.
- the workpiece is strongly stretched at the side opposite to the piercing and rivet section.
- a crack arises at the position of the smallest banding radius of the elongated region and does not necessarily coincide with a cut edge of the slug to be cut out by the die button and the piercing and riveting section. This signifies that during the punching in process a bur, in particular a ring-shaped burr, arises which causes the initially named problems.
- this problem is prevented in that the workpiece is supported during the punching in process in which the slug is cut out from the workpiece. This is achieved by the die plunger which is pressed against the workpiece from a side of the workpiece opposite to the fastener element which is to be punched in. In this way, the creation of the depression which initially occurs in the customary process is avoided. Only when the cutting process associated with the punching in is finished, i.e. as soon as the slug has been substantially completely separated from the workpiece is a movement of the die plunger permitted. Basically, provision can be made that a movement of the die plunger is first permitted after the completion of the cutting process.
- the die plunger it is also basically possible for the die plunger to be actively moved. A passive movement of the die plunger is however preferred. In this connection, one exploits the fact that forces vary which occurring the punching in process.
- the predetermined pressing force can thus be selected such that a movement of the die plunger automatically first arises in specific states, i.e. specifically first after the slug has been punched out of the workpiece by the fastener element and the forces acting between the die plunger and the fastener element exceed the pressing force.
- the die plunger is movable in a direction parallel to a punching in movement of the fastener element.
- the pressing force i.e. the force with which the die plunger is biased towards the workpiece is in particular directed antiparallel to the punching in movement of the fastener element.
- the pressing force can be selected in such a way that the die plunger is first moved when a fastener section of the fastener element is deformed by a shaping surface of the die plunger, i.e.
- the preset force is so large that the die plunger is first set in motion when, as a result of the shaping of a section of the fastener element, for example a part of the piercing section acting as a rivet section, the forces which occur exceed the pressing force.
- the die plunger has a raised portion which at the start of the punching in process projects out of the plane which is defined by a rim of a recess of the die button.
- the die plunger supports the workpiece during the punching in not only in a plane which is defined by a workpiece support surface on which the workpiece lies during the process.
- the raised portion of the die plunger ensures that a center part of the slug which is to be punched out is be pressed towards the fastener element which is to be punched in. This facilitates the cutting during the penetration of the piercing section into the workpiece.
- the die plunger includes a cutting edge which at the start of the punching in process lies in a plane which is defined by the rim of the recess of the die button.
- a movement of the die plunger opposite to and/or in the direction of the pressing force is restricted by an abutment in order, on the one hand, to fix a well-defined position of the die plunger prior to the punching in of the fastener element and, on the other hand, to ensure a controlled attachment of the fastener element to the workpiece by fixing a maximum deflection of the die plunger.
- the die plunger can have a shaping surface through which the piercing section is at least regionally deformed radially outwardly.
- the piercing section which also serves as the rivet section is beaded outwardly by the shaping surface.
- the shaping surface can be conically and/or concavely shaped, at least regionally.
- the depression is in particular at least so deep that the flange does not project in the axial direction out of the depression.
- the predetermined pressing force can be selected in dependence of the properties of the workpiece in dependence on the properties of the fastener element and/or in dependence on a pressing force with which the fastener element is pressed by a pressing unit towards the workpiece, in order to ensure that a reliable support of the workpiece is present in the region of the slug which is to be cut out during the cutting process on the punching in of the fastener element.
- a premature creation of a depression which stretches the material of the workpiece and thus leads to the creation of swarf is avoided.
- An adjustable biasing device can be associated with the die plunger with which the predetermined pressing force is adjustable.
- the invention further relates to a die button for the punching in and attachment of the fastener element to a planar workpiece, in particular to a sheet metal part in accordance with a method in accordance with at least one of the previously described embodiments, with the moveably arranged die plunger being capable of being pressed by a pressing device against the workpiece and wherein a pressing force made available by the biasing device is selected such that the die plunger first moves when a slug has been cut out by the piercing section of the fastener element. The direction of movement of the die plunger takes place during this in the direction of movement of the fastener element.
- the predetermined pressing force generated by the biasing device is adjustable.
- the biasing device in particular includes a spring.
- the biasing device can be designed both as a mechanical spring, such as a coil spring, and also as a pneumatic spring, for example a pneumatically actuated piston in cylinder arrangement or as a hydraulic spring, for example a hydraulically actuated piston in cylinder arrangement, or as a (movable) latch element.
- the die plunger can be moved by an actuator between the two preset positions which represents an equivalent of the biasing device and which can for example be realized in an electrical pneumatic or hydraulic manner.
- FIGS. 1 to 10 a customary method for the punching in and attachment of a fastener element to a planar workpiece
- FIGS. 11 to 22 an embodiment of the method of the present invention.
- FIG. 1 a bolt element which is punched into a planar sheet metal part 12 ,
- FIG. 2 the section characterized in broking lines in FIG. 1 in an enlarged representation
- FIG. 3 a representation similar to FIG. 1 but in a further advanced state of the attachment of the bolt element
- FIG. 4 an enlarged representation of the central region of FIG. 3 .
- FIG. 5 the tearing of the sheet metal part in accordance with a further advanced state of the attachment of the bolt element
- FIG. 6 an enlarged representation of the central region of FIG. 5 .
- FIG. 7 the creation of a burr in an advanced state of the attachment of the bolt element
- FIG. 8 an enlarged representation of the central region of FIG. 7 .
- FIG. 9 the completion of the connection of the bolt element to the sheet metal part
- FIG. 10 an enlarged representation of the central region of FIG. 9 .
- FIG. 11 a representation of the start of the attachment of the bolt element to a sheet metal part using the method in accordance with the invention and using the die button in accordance with the invention
- FIG. 12 an enlarged representation of the central region of FIG. 11 .
- FIG. 13 a representation of the method in accordance with the invention directly after the formation of the piercing slug
- FIG. 14 an enlarged representation of the central region of FIG. 13 .
- FIG. 15 a representation similar to FIG. 13 , but after the initial movement of the die plunger
- FIG. 16 an enlarged representation of the central region of FIG. 15 .
- FIG. 17 a representation similar to FIG. 15 but after a further movement of the die plunger
- FIG. 18 an enlarged representation of the central region of FIG. 17 .
- FIG. 19 a representation similar to FIG. 17 but shortly before the completion of the formation of the rivet bead
- FIG. 20 an enlarged representation of the central region of FIG. 19 .
- FIG. 21 a representation similar to FIG. 19 but after the termination of the formation of the rivet bead and the attachment of the bolt element to a sheet metal part,
- FIG. 22 an enlarged representation of the central region of FIG. 21 .
- FIG. 1 shows a bolt element 10 which is to be punched into a planar sheet metal part 12 and secured to it. It will be understood that instead of the bolt element a nut element, a hollow rivet or another self-piercing element can be used.
- the piercing section 14 of the bolt element 10 starts in the state shown in FIG. 1 to press the sheet metal part 12 into a recess 16 of the die button 18 whereby the formation of a depression sets in.
- FIG. 2 shows the section shown in broken lines in FIG. 1 in an enlarged representation.
- the die button 18 includes a die button jacket 20 merges via a rounded section 22 forming the rim of the recess 16 into a sheet metal support surface 24 (see also FIG. 1 ).
- the sheet metal part 12 lies on the sheet metal support surface 24 during the punching in and attachment process.
- the die button jacket 20 merges into a further rounded section 23 which is in turn followed at the radially inner side by a die plunger 28 surrounded by a ring groove 26 .
- the crack 30 propagates—as shown in FIGS. 5 and 6 —until it has completely passed through the sheet metal part 12 . It can be seen that the crack 30 does not normally arise at the position where the piercing section 14 in conjunction with the cutting edge 32 of the die plunger 28 leads to a cutting through of the sheet metal part 12 and thus to the generation of a slug 34 . Accordingly, a ring-like burr 36 arises which, during a beading over of the piercing section 14 acting as a rivet section through the section of the ring groove 26 , is jammed between the piercing section 14 and a side of the sheet metal part 12 remote from a flange 38 of the bolt element 10 (see FIGS. 7 and 8 ).
- the burr 36 remains between the sheet metal part 12 and the surrounding piercing section 14 . Often it is however forced outwardly by a further pressing action 10 against the die button 18 which is shown in FIGS. 9 and 10 . The burr 36 then either remains in the recess 16 of the die button 18 , where it disturbs the subsequent punching in processes, or it is likewise removed from the die button 16 during the removal of the component assembly consisting of the sheet metal part 11 and the bolt element 10 and then wanders through the tooling as a disturbing foreign body.
- the method which is described with reference to FIGS. 11 and 22 reliably prevents the creation of swarf 36 .
- a bolt element 10 can be used which is provided with features 40 providing security against rotation at the flange 38 which is to be brought into contact with the sheet metal part 12 .
- the method of the invention can however be carried out with any desired self-piercing elements.
- the die button 18 ′ of the invention has a movable die plunger 28 ′ which, at the start of the punching in and attachment process is pressed against the sheet metal part 12 from the side remote from the bolt element 10 .
- the pressing force which acts coaxially to a longitudinal axis L of the bolt element 10 and of the plunger 28 ′ is made available by a spring 42 .
- the spring 42 instead of the spring 42 other devices can be used which can generate a predetermined pressing force, such as for example hydraulic and/or pneumatic systems.
- the sheet metal part is supported in a central region of the slug 34 to be punched out by the die plunger 28 ′.
- a raised portion 44 of the die plunger 28 ′ projects in the illustrated basic state somewhat beyond the sheet metal contact surface 24 or the rim of the recess 16 of the die button 18 .
- the sheet metal part is thereby bent slightly in this region towards the bolt element 10 in order to assist the cutting out of the slug 34 by the piercing section 14 and the cutting edge 32 ′.
- the cutting edge 32 ′ lies in the illustrated state in the above-named plane.
- the pressing force made available by the spring 42 is selected such that during the cutting out of the piercing slug 34 from the sheet metal part a movement of the die plunger 28 ′ downwardly does not take place.
- the die plunger 28 ′ does the latter deflect downwardly as is shown in FIGS. 15 and 16 only when a shaping of the piercing section 14 starts as a result of the shaping of the shaping surface 46 of the die plunger 28 ′ and thereby correspondingly large forces act between the piercing section 14 and the die plunger 28 ′.
- the pressing force is so selected, taking account amongst other things of the properties of the sheet metal part 12 and/or of the element 10 , that the slug 34 which is created is supported throughout the entire piercing process.
- a movement of the die plunger 28 ′ is first provided only after the slug 34 has been completely cut out of the sheet metal part 12 .
- this first starts depends, amongst other things, on the shape of the peripheral surface 46 and the pressing force which is set. Provision can, for example, be made that the reshaping of the piercing section 14 first takes place comparatively late and a plunger 28 ′ is not set in movement directly after the punching out of the slug 34 .
- FIGS. 15 and 16 The start of the reshaping process of the piercing slug 14 is shown in FIGS. 15 and 16 .
- a larger proportion of the pressing force acting on the bolt element 10 is transmitted to the plunger 28 ′ so that the pressing force is overcome and the plunger 28 ′ starts to deviate downwardly.
- FIGS. 17 and 18 a state is shown in which the die plunger 28 ′ has reached a lower end position. I.e. it has reached an abutment position, so that the plunger 28 ′ no longer moves.
- the piercing section 14 has been pierced over outwardly concave design of the reshaping surface 46 in the lower parts.
- the concave section of the reshaping surface 46 thus forms a component comparable with the ring groove 26 which serves for the beading over of the piercing section 14 , which can also be seen in FIGS. 19 to 22 .
- the design of the die button jacket 20 ′ of the die button 18 ′ can be matched to the respectively present requirements.
- the same also applies to the rounded rim portion 22 ′ which corresponds functionally to the rounded section 22 of the die button 18 .
- the final end state resembles the state shown in FIGS. 9 and 10 to the extent that the flange 38 is received in the axial direction by a depression formed by the punching in and attaching process.
- the method of the invention thus serves for crack avoidance and thus a burr—avoiding support of the slug 34 to be cut out at the start of the method and simultaneously permits the formation of a depression which receives the flange 38 .
- the pressing force of the supporting die plunger 28 ′ must be selected such that a movement of the die plunger 28 ′ is first permitted after the cutting out of the piercing slug 34 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Punching Or Piercing (AREA)
- Insertion Pins And Rivets (AREA)
- Automatic Assembly (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/667,007 US10252317B2 (en) | 2013-08-28 | 2017-08-02 | Die button |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE102013217213 | 2013-08-28 | ||
DE102013217213.3 | 2013-08-28 | ||
DE102013217213.3A DE102013217213A1 (de) | 2013-08-28 | 2013-08-28 | Verfahren zum einstanzen und befestigen eines befestigungselements und entsprechende matrize |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/667,007 Division US10252317B2 (en) | 2013-08-28 | 2017-08-02 | Die button |
Publications (2)
Publication Number | Publication Date |
---|---|
US20150059152A1 US20150059152A1 (en) | 2015-03-05 |
US9764372B2 true US9764372B2 (en) | 2017-09-19 |
Family
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Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US14/470,372 Active 2035-05-08 US9764372B2 (en) | 2013-08-28 | 2014-08-27 | Method for the punching in and attachment of a fastener element and corresponding die button |
US15/667,007 Active US10252317B2 (en) | 2013-08-28 | 2017-08-02 | Die button |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/667,007 Active US10252317B2 (en) | 2013-08-28 | 2017-08-02 | Die button |
Country Status (7)
Country | Link |
---|---|
US (2) | US9764372B2 (zh) |
EP (1) | EP2845679B1 (zh) |
CN (1) | CN104416083A (zh) |
DE (1) | DE102013217213A1 (zh) |
ES (1) | ES2786085T3 (zh) |
IN (1) | IN2014DE02414A (zh) |
RU (1) | RU2014135094A (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210341009A1 (en) * | 2020-04-29 | 2021-11-04 | Profil Verbindungstechnik Gmbh & Co. Kg | Functional Element |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013217213A1 (de) | 2013-08-28 | 2015-03-05 | Profil Verbindungstechnik Gmbh & Co. Kg | Verfahren zum einstanzen und befestigen eines befestigungselements und entsprechende matrize |
GB201812641D0 (en) * | 2018-08-03 | 2018-09-19 | Henrob Ltd | Riveting method |
Citations (15)
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US3022687A (en) | 1953-11-20 | 1962-02-27 | Arthur J Richards | Method of riveting |
CA902350A (en) | 1972-06-13 | C. Koett Albert | Pierce nut fastening means and method | |
DE3003908A1 (de) | 1980-02-02 | 1981-08-13 | Profil-Verbindungstechnik Gmbh & Co Kg, 6382 Friedrichsdorf | Stehbolzen mit stanz- und nietverhalten |
US4555838A (en) | 1983-03-28 | 1985-12-03 | Multifastener Corp. | Method of installing self-attaching fasteners |
US4610072A (en) | 1983-12-21 | 1986-09-09 | Multifastener Corporation | Method of installing a fastener to a panel |
JPS6296946U (zh) | 1985-12-09 | 1987-06-20 | ||
US4765057A (en) * | 1980-02-02 | 1988-08-23 | Multifastener Corporation | Self-attaching fastener, panel assembly and installation apparatus |
DE3835566A1 (de) | 1987-10-21 | 1989-05-11 | Profil Verbindungstechnik Gmbh | Verfahren und vorrichtung zum befestigen eines hohlkoerpers an einem blech od. dgl. |
US5560094A (en) * | 1980-02-02 | 1996-10-01 | Multifastener Corporation | Method of attaching a fastener to a panel |
DE19847980A1 (de) | 1998-10-17 | 2000-04-20 | Talbot Gmbh & Co Kg | Werkzeug zum Setzen von Stanznieten |
WO2003029667A1 (de) | 2001-09-25 | 2003-04-10 | Profil Verbindungstechnick Gmbh & Co. Kg | Befestigungselement |
EP1477249A1 (en) | 2001-12-27 | 2004-11-17 | Newfrey LLC | Automatic punching riveting device and die used for the device |
DE102008005288A1 (de) | 2008-01-19 | 2009-08-13 | Daimler Ag | Karosseriebauteil und dessen Befestigungsanordnung an einer Karosserie eines Kraftwagens |
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DE102012102860A1 (de) | 2012-04-02 | 2013-10-10 | Böllhoff Verbindungstechnik GmbH | Stanzniet mit einem vorgelochten flächigen Element, Herstellungsverfahren sowie Fügeverfahren dafür |
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US4911592A (en) * | 1980-02-02 | 1990-03-27 | Multifastener Corporation | Method of installation and installation apparatus |
US4633560A (en) * | 1980-02-02 | 1987-01-06 | Multifastener Corporation | Self-attaching fastener, die set |
US4713872A (en) * | 1980-02-02 | 1987-12-22 | Multifastener Corporation | Method of attaching fastening element to a panel |
DE102013217213A1 (de) | 2013-08-28 | 2015-03-05 | Profil Verbindungstechnik Gmbh & Co. Kg | Verfahren zum einstanzen und befestigen eines befestigungselements und entsprechende matrize |
-
2013
- 2013-08-28 DE DE102013217213.3A patent/DE102013217213A1/de not_active Withdrawn
-
2014
- 2014-08-21 EP EP14181727.0A patent/EP2845679B1/de active Active
- 2014-08-21 ES ES14181727T patent/ES2786085T3/es active Active
- 2014-08-25 IN IN2414DE2014 patent/IN2014DE02414A/en unknown
- 2014-08-27 US US14/470,372 patent/US9764372B2/en active Active
- 2014-08-27 RU RU2014135094A patent/RU2014135094A/ru not_active Application Discontinuation
- 2014-08-28 CN CN201410433419.6A patent/CN104416083A/zh active Pending
-
2017
- 2017-08-02 US US15/667,007 patent/US10252317B2/en active Active
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CA902350A (en) | 1972-06-13 | C. Koett Albert | Pierce nut fastening means and method | |
US3022687A (en) | 1953-11-20 | 1962-02-27 | Arthur J Richards | Method of riveting |
US5560094A (en) * | 1980-02-02 | 1996-10-01 | Multifastener Corporation | Method of attaching a fastener to a panel |
US4765057A (en) * | 1980-02-02 | 1988-08-23 | Multifastener Corporation | Self-attaching fastener, panel assembly and installation apparatus |
DE3003908A1 (de) | 1980-02-02 | 1981-08-13 | Profil-Verbindungstechnik Gmbh & Co Kg, 6382 Friedrichsdorf | Stehbolzen mit stanz- und nietverhalten |
US4727646A (en) | 1980-02-02 | 1988-03-01 | Multifastener Corporation | Die set for securing a self-attaching element |
US4831698A (en) | 1983-03-28 | 1989-05-23 | Multifastener Corporation | Method of attaching a female element to a panel |
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Also Published As
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ES2786085T3 (es) | 2020-10-08 |
IN2014DE02414A (zh) | 2015-06-26 |
RU2014135094A (ru) | 2016-03-20 |
CN104416083A (zh) | 2015-03-18 |
US20170326616A1 (en) | 2017-11-16 |
EP2845679A1 (de) | 2015-03-11 |
DE102013217213A1 (de) | 2015-03-05 |
EP2845679B1 (de) | 2020-04-01 |
US10252317B2 (en) | 2019-04-09 |
US20150059152A1 (en) | 2015-03-05 |
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